Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans
Bluefin tuna (BFT), highly prized among consumers, accumulate high levels of mercury (Hg) as neurotoxic methylmercury (MeHg). However, how Hg bioaccumulation varies among globally distributed BFT populations is not understood. Here, we show mercury accumulation rates (MARs) in BFT are highest in the...
Published in: | Proceedings of the National Academy of Sciences |
---|---|
Main Authors: | , , , , , , |
Format: | Text |
Language: | English |
Published: |
National Academy of Sciences
2021
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8463802/ http://www.ncbi.nlm.nih.gov/pubmed/34518236 https://doi.org/10.1073/pnas.2111205118 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:8463802 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:8463802 2023-05-15T17:29:06+02:00 Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans Tseng, Chun-Mao Ang, Shin-Jing Chen, Yi-Sheng Shiao, Jen-Chieh Lamborg, Carl H. He, Xiaoshuai Reinfelder, John R. 2021-09-21 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8463802/ http://www.ncbi.nlm.nih.gov/pubmed/34518236 https://doi.org/10.1073/pnas.2111205118 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8463802/ http://www.ncbi.nlm.nih.gov/pubmed/34518236 http://dx.doi.org/10.1073/pnas.2111205118 https://creativecommons.org/licenses/by/4.0/This open access article is distributed under Creative Commons Attribution License 4.0 (CC BY) (https://creativecommons.org/licenses/by/4.0/) . CC-BY Proc Natl Acad Sci U S A Biological Sciences Text 2021 ftpubmed https://doi.org/10.1073/pnas.2111205118 2021-10-31T00:23:04Z Bluefin tuna (BFT), highly prized among consumers, accumulate high levels of mercury (Hg) as neurotoxic methylmercury (MeHg). However, how Hg bioaccumulation varies among globally distributed BFT populations is not understood. Here, we show mercury accumulation rates (MARs) in BFT are highest in the Mediterranean Sea and decrease as North Pacific Ocean > Indian Ocean > North Atlantic Ocean. Moreover, MARs increase in proportion to the concentrations of MeHg in regional seawater and zooplankton, linking MeHg accumulation in BFT to MeHg bioavailability at the base of each subbasin's food web. Observed global patterns correspond to levels of Hg in each ocean subbasin; the Mediterranean, North Pacific, and Indian Oceans are subject to geogenic enrichment and anthropogenic contamination, while the North Atlantic Ocean is less so. MAR in BFT as a global pollution index reflects natural and human sources and global thermohaline circulation. Text North Atlantic PubMed Central (PMC) Indian Pacific Proceedings of the National Academy of Sciences 118 38 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Biological Sciences |
spellingShingle |
Biological Sciences Tseng, Chun-Mao Ang, Shin-Jing Chen, Yi-Sheng Shiao, Jen-Chieh Lamborg, Carl H. He, Xiaoshuai Reinfelder, John R. Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans |
topic_facet |
Biological Sciences |
description |
Bluefin tuna (BFT), highly prized among consumers, accumulate high levels of mercury (Hg) as neurotoxic methylmercury (MeHg). However, how Hg bioaccumulation varies among globally distributed BFT populations is not understood. Here, we show mercury accumulation rates (MARs) in BFT are highest in the Mediterranean Sea and decrease as North Pacific Ocean > Indian Ocean > North Atlantic Ocean. Moreover, MARs increase in proportion to the concentrations of MeHg in regional seawater and zooplankton, linking MeHg accumulation in BFT to MeHg bioavailability at the base of each subbasin's food web. Observed global patterns correspond to levels of Hg in each ocean subbasin; the Mediterranean, North Pacific, and Indian Oceans are subject to geogenic enrichment and anthropogenic contamination, while the North Atlantic Ocean is less so. MAR in BFT as a global pollution index reflects natural and human sources and global thermohaline circulation. |
format |
Text |
author |
Tseng, Chun-Mao Ang, Shin-Jing Chen, Yi-Sheng Shiao, Jen-Chieh Lamborg, Carl H. He, Xiaoshuai Reinfelder, John R. |
author_facet |
Tseng, Chun-Mao Ang, Shin-Jing Chen, Yi-Sheng Shiao, Jen-Chieh Lamborg, Carl H. He, Xiaoshuai Reinfelder, John R. |
author_sort |
Tseng, Chun-Mao |
title |
Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans |
title_short |
Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans |
title_full |
Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans |
title_fullStr |
Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans |
title_full_unstemmed |
Bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans |
title_sort |
bluefin tuna reveal global patterns of mercury pollution and bioavailability in the world's oceans |
publisher |
National Academy of Sciences |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8463802/ http://www.ncbi.nlm.nih.gov/pubmed/34518236 https://doi.org/10.1073/pnas.2111205118 |
geographic |
Indian Pacific |
geographic_facet |
Indian Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Proc Natl Acad Sci U S A |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8463802/ http://www.ncbi.nlm.nih.gov/pubmed/34518236 http://dx.doi.org/10.1073/pnas.2111205118 |
op_rights |
https://creativecommons.org/licenses/by/4.0/This open access article is distributed under Creative Commons Attribution License 4.0 (CC BY) (https://creativecommons.org/licenses/by/4.0/) . |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1073/pnas.2111205118 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
118 |
container_issue |
38 |
_version_ |
1766122686407245824 |